support multiple commands in sesh

sesh/vendor/github.com/goccy/go-yaml/context.go

@@ -0,0 +1,37 @@
+package yaml
+
+import "context"
+
+type (
+	ctxMergeKey  struct{}
+	ctxAnchorKey struct{}
+)
+
+func withMerge(ctx context.Context) context.Context {
+	return context.WithValue(ctx, ctxMergeKey{}, true)
+}
+
+func isMerge(ctx context.Context) bool {
+	v, ok := ctx.Value(ctxMergeKey{}).(bool)
+	if !ok {
+		return false
+	}
+	return v
+}
+
+func withAnchor(ctx context.Context, name string) context.Context {
+	anchorMap := getAnchorMap(ctx)
+	if anchorMap == nil {
+		anchorMap = make(map[string]struct{})
+	}
+	anchorMap[name] = struct{}{}
+	return context.WithValue(ctx, ctxAnchorKey{}, anchorMap)
+}
+
+func getAnchorMap(ctx context.Context) map[string]struct{} {
+	v, ok := ctx.Value(ctxAnchorKey{}).(map[string]struct{})
+	if !ok {
+		return nil
+	}
+	return v
+}